Add privacy-friendly analytics and cookie consent, integrated into the CMS

Adds a first-party analytics system with no third-party trackers and no
persistent per-visitor identifiers: events are grouped into sessions via a
daily-rotating pseudonymous hash (IP+UA+host, HMAC-salted, never stored raw).

- New "Analytics" section in the Payload admin, gated by a canViewAnalytics
  permission on Users, following the existing custom-admin-view pattern
  used by the calendar feature
- Sessions, page views, unique visitors, top/entry/exit pages, events,
  device/browser breakdown, date range filter with period comparison
- Raw events and daily aggregate rollups as their own collections, with
  configurable retention and a cron endpoint that rolls up before purging
- Cookie consent banner (necessary/preferences/statistics) with categories
  and copy editable from a new CMS global; a track() helper that is a
  complete no-op without statistics consent, so nothing is ever sent
  before a visitor opts in
- track() calls wired into the booking flow, contact form, and navigation

components/admin/AdminAnalyticsView.module.css

@@ -0,0 +1,188 @@
+.page {
+  padding: 24px;
+  max-width: 1100px;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
+  color: #1f1f1f;
+}
+
+.title {
+  font-size: 22px;
+  font-weight: 600;
+  margin: 0 0 4px;
+}
+
+.subtitle {
+  color: #666;
+  font-size: 14px;
+  margin: 0 0 24px;
+}
+
+.filterBar {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 8px;
+  margin-bottom: 24px;
+}
+
+.rangeLink {
+  display: inline-flex;
+  align-items: center;
+  padding: 6px 14px;
+  border-radius: 999px;
+  border: 1px solid #e2e2e2;
+  color: #333;
+  text-decoration: none;
+  font-size: 13px;
+  font-weight: 500;
+}
+.rangeLink:hover {
+  background: #f5f5f5;
+}
+.rangeLinkActive {
+  background: #8b616d;
+  border-color: #8b616d;
+  color: #fff;
+}
+
+.customForm {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  font-size: 13px;
+  color: #555;
+}
+.customForm input[type="date"] {
+  border: 1px solid #e2e2e2;
+  border-radius: 6px;
+  padding: 5px 8px;
+  font-size: 13px;
+}
+.customForm button {
+  border: 1px solid #e2e2e2;
+  border-radius: 999px;
+  padding: 6px 14px;
+  font-size: 13px;
+  background: #fff;
+  cursor: pointer;
+}
+
+.compareToggle {
+  margin-left: auto;
+  font-size: 13px;
+}
+.compareToggle a {
+  color: #8b616d;
+  text-decoration: none;
+}
+.compareToggle a:hover {
+  text-decoration: underline;
+}
+
+.tiles {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
+  gap: 12px;
+  margin-bottom: 28px;
+}
+
+.tile {
+  border: 1px solid #e6e6e6;
+  border-radius: 12px;
+  padding: 14px 16px;
+  background: #fafafa;
+}
+
+.tileLabel {
+  font-size: 12px;
+  color: #888;
+  margin: 0 0 6px;
+}
+
+.tileValue {
+  font-size: 24px;
+  font-weight: 700;
+  margin: 0;
+}
+
+.tileDelta {
+  font-size: 12px;
+  font-weight: 600;
+  margin-top: 4px;
+}
+.deltaUp {
+  color: #3a4f30;
+}
+.deltaDown {
+  color: #7a2020;
+}
+.deltaFlat {
+  color: #888;
+}
+
+.chartCard {
+  border: 1px solid #e6e6e6;
+  border-radius: 12px;
+  padding: 18px;
+  margin-bottom: 28px;
+}
+
+.sectionTitle {
+  font-size: 15px;
+  font-weight: 600;
+  margin: 0 0 12px;
+}
+
+.tableGrid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
+  gap: 20px;
+  margin-bottom: 28px;
+}
+
+.table {
+  width: 100%;
+  border-collapse: collapse;
+  font-size: 13px;
+}
+.table th {
+  text-align: left;
+  font-size: 11px;
+  text-transform: uppercase;
+  color: #888;
+  padding: 4px 8px;
+  border-bottom: 1px solid #e6e6e6;
+}
+.table td {
+  padding: 6px 8px;
+  border-bottom: 1px solid #f0f0f0;
+}
+.table tr:last-child td {
+  border-bottom: none;
+}
+.tableEmpty {
+  color: #888;
+  font-size: 13px;
+  padding: 8px;
+}
+
+.privacyPanel {
+  border: 1px solid #e6e6e6;
+  border-radius: 12px;
+  padding: 18px;
+  background: #f7f4f1;
+  font-size: 13px;
+  color: #444;
+}
+.privacyPanel h3 {
+  margin: 0 0 8px;
+  font-size: 14px;
+  color: #1f1f1f;
+}
+.privacyPanel ul {
+  margin: 8px 0;
+  padding-left: 18px;
+}
+.privacyPanel p {
+  margin: 6px 0;
+}